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Title: Microbend fiber-optic chemical sensor

Abstract

A microbend fiber-optic chemical sensor for detecting chemicals in a sample, and a method for its use, is disclosed. The sensor comprises at least one optical fiber having a microbend section (a section of small undulations in its axis), for transmitting and receiving light. In transmission, light guided through the microbend section scatters out of the fiber core and interacts, either directly or indirectly, with the chemical in the sample, inducing fluorescence radiation. Fluorescence radiation is scattered back into the microbend section and returned to an optical detector for determining characteristics of the fluorescence radiation quantifying the presence of a specific chemical.

Inventors:
 [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
874291
Patent Number(s):
6358748
Assignee:
The United States of America as represented by the U.S. Department of (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
microbend; fiber-optic; chemical; sensor; detecting; chemicals; sample; method; disclosed; optical; fiber; section; undulations; axis; transmitting; receiving; light; transmission; guided; scatters; core; interacts; directly; indirectly; inducing; fluorescence; radiation; scattered; returned; detector; determining; characteristics; quantifying; presence; specific; optical fiber; chemical sensor; /436/422/

Citation Formats

Weiss, Jonathan D. Microbend fiber-optic chemical sensor. United States: N. p., 2002. Web.
Weiss, Jonathan D. Microbend fiber-optic chemical sensor. United States.
Weiss, Jonathan D. Tue . "Microbend fiber-optic chemical sensor". United States. https://www.osti.gov/servlets/purl/874291.
@article{osti_874291,
title = {Microbend fiber-optic chemical sensor},
author = {Weiss, Jonathan D},
abstractNote = {A microbend fiber-optic chemical sensor for detecting chemicals in a sample, and a method for its use, is disclosed. The sensor comprises at least one optical fiber having a microbend section (a section of small undulations in its axis), for transmitting and receiving light. In transmission, light guided through the microbend section scatters out of the fiber core and interacts, either directly or indirectly, with the chemical in the sample, inducing fluorescence radiation. Fluorescence radiation is scattered back into the microbend section and returned to an optical detector for determining characteristics of the fluorescence radiation quantifying the presence of a specific chemical.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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Works referenced in this record:

Fiber-optic strain gauge
journal, January 1989


Fiber optic fluorescence sensors based on sol-gel entrapped dyes
conference, September 1991